【正文】 點兒吧，生活并不是那么糟！ cheer up“ 感到高興；感到振奮 ” ，符合題意。結(jié)合句意選 A。 15． While crossing the street, you should ________ for cars. A． watch out B． take out C． bring out D． e out 答案： A 句意：過馬路時，要留心車。 17． B． hoped C． required D． sent 答案： A expect somebody to do something 表示 “ 期待某人做某 事 ” 。 23． B． quiet C． lifeless D． dead 答案： C 此句的意思是 “ 剛開始的時候，科學(xué)家認為這顆紅色的行星象月球一樣沒有生命 (lifeless)” 。re C． here39。 ” 32． B． if C． how D． that 答案： D 此句意思是 “ 報告說由于火星的軸在過去的歲月中更傾斜于太陽，那時火星的天氣，可能比現(xiàn)在暖和 ” 。t escape for long. Tons of broken pieces are thrown into the atmosphere by the explosion. As the sun is hidden by clouds of dust, temperatures around the world fall to almost zero. Crops are ruined. Wars break out as countries fight for food. A year later civilization has collapsed. No more than 10 million people have survived. Could it really happen? It has already happened more than once in the history of the earth. The dinosaur were on the Earth for over 160 million years. Then 65 million years ago they suddenly disappeared. Many scientists believe that the Earth was hit by a space fragment. The dinosaurs couldn39。第三段中，作者描述假想的人類災(zāi)難 ?? 最后一段提到生活在地球上的恐龍在 65 million years ago 突然消失 (即滅絕 )，許多 科學(xué)家相信地球曾受到過外空星體碎片的襲擊，故而導(dǎo)致恐龍絕種。 B (2021trip ticket and a small package. “Give this package to Jean Paul at the airport in Paris. He will have a sign with your name on it. I think you can find him easily， ” Tony said ， “You don39。courier， but it is quick. Every year about 80,000 people worldwide travel as aircouriers. The number of tickets for courier travel is growing by about 10 percent a year. However, air173。 45． Who was Tony? A． He might be an air173。courier， but it is 它迅速。s atmosphere. Scientists believe man may find plas which have the same conditions as those we have on earth, but man should realize Earth will be his only home for a long time and begin to love and care for it. 48． According to the passage, traveling to the plas will be________. A． much easier and even more interesting B． far more exciting and dangerous C． man39。 50． Scientists think we should take care of our earth because________. A． no other plas are to take the place of the earth B． everything needed is provided by the earth C． the only home of man will be the earth for a long time D． the dream to find another home for man will e true 答案： C 細節(jié)理解題。Sky Association. “100 million birds a year throughout North America die in crashes with lighted buildings and towers.” Countless more animals casualties(傷亡 )result from the use of artificial lighting. Clearly, people enjoy the benefits of lighting their evenings, but some scientists think it can be harmful for humans, too. They worry that exposure to light while sleeping can increase a person39。故選 C項。故選 B項。 ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 參 考范文： My magic neutral water pen The neutral water pen is widely used in the process of study but we often have trouble using them because of its limited ink and other inconvenience. To deal with these problems, consequently, I have worked heart and soul to create my own magic neutral water pen. The most shining function of this newly designed pen is that it will contain special ink powder which makes it have endless ink. Furthermore, the pen is made of the extremely strong materials, which can protect the pen from the damage when it might fall down onto the ground. Better still, so smoothly does it write that it can contribute to making our handwriting better. Such is my magic neutral water pen. Are you interested in it? Hope it will be of great use for users. 。全文是關(guān)于光污染所造成的危害，也就是讓人們知道人的活動應(yīng)該注意環(huán)境保護。s living habits may change suddenly. C． Varieties of animals will bee sharply reduced. D． Animals39。 51． It happened last night that ________. A． the city39。根本原因在于人類在近期內(nèi)無法找到能夠和地球的生存常規(guī)交叉相提并論的星球， 所以地球在很長時間內(nèi)依然是人類賴以生存的家園。s first step 答案： B 細節(jié)理解題。 47． Air173。s friend. D． He might be a customs official. 答案： A 細節(jié)理解題。t for everyone. But if you have very little money， can be flexible about your travel plans， and don39。on bag.” “That39。 41． What39。 38． In writing the passage, the author intends to________. A． give an accurate description of the possible disaster in the future B． prove that humans will sooner or later be destroyed C． tell the historical development of the earth D． warn of a possible disaster in the future 答案： D 觀點態(tài)度題。s descripti